Updates:
Reworded Firesnake (again), deleting any mention of it's duration from the text.
Removed the Planar Trait trick from IHS, so no more shutting off gravity. You'll need a Shadow Hand or Desert Wind stance for that.
Finished the Legacy Item section.
Split the errata's post due to word count. Yeah, there was more than 40,000 characters worth of errata for the Bo9S.
Onto the magic item section.
Martial Scripts
[spoiler]Would anyone object to just straight-up deleting these? Seriously, they make absolutely no sense at all.[/spoiler]
Weapon Special Abilities
[spoiler]I'm very hesitant about tweaking Aptitude at all. The Lightning Maces combo is just a case of poor foresight on WotC's behalf, and all it does is create an attack combo.
Other than providing clearer text for the Discipline Weapon ability, I really don't see anything wrong here.[/spoiler]
Crown of White Ravens
[spoiler]And it's ilk.
Should they grant stances?
Are the maneuvers granted by it in addition to your maneuvers known?
Should they count towards prerequisites for other maneuvers?
Should they require you to ready the maneuver as normal, or should they work like Martial Study?
At the very least, I think these items should not be allowed to stack with ones from the same discipline (thus you can't combine two Crowns of White Ravens and get two White Raven maneuvers.[/spoiler]
I'm probably going to take that last section to the Min/Max forums for more discussion.